{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "METHODS : Immunohistochemical staining with D2 - 40 and CD34 was performed on formalin - fixed , paraffin - embedded tissue sections of 254 invasive breast tumors of 247 patients with node negative and node positive early breast cancer ."}
{"Anatomy": ["tissue sections", "invasive breast tumors", "node", "breast cancer"]}